Channeling-machine.



w. PRBILWITZ.

GHANNBLING MAGHINB.

APPLICATION FILED JAN. 4. 1907.

BTS-SHEET 1.

Patented May. 23, 1909.

W. PRELLWITZ.

` GHANNELING MACHINE.

AryLIoATIoN FILED JAIM. 1907.

Patented Mar. 23, 1909.

wil Vle/wao:

the crine and clamping it securely and rigidly' to the frame.

`Ainovable double clutch member 28 is locaid'on the shaft 29 ofthe motor 5 and it is 5 arranged to be engaged either with. the gear 30 of the truck driving mechanism or the gear 31 of the drill swinging mechanism, for Q ocking the said'motor shaft to the one or the other ofthe ,said mechanisms. The truck 1.0 driving mechanism comprises the gear 30 'f which meshes with a gear 32 on a shaft 33 having a worm 34 meshing with a gear 35 'xed on the axle 36 of one pair of truck wheels 2. 16 The mechanism for imparting a radial movement to the drill comprises the bevel gear 31 which is fixed to the lower section 37 of an extensible and contractibleshaft the upper'section 38 of which has fixed thereto a '20 bevelV gear 39 which meshes with a bevel gear 40 fixed to a stud shaft 41. This stud shaft 41 ismounted in suitable bearings in the frame lO-and it has fixed thereto a gear 42 which meshes with a gear 43 fixed to a worm shaft 44, the worm 45 of which vmeshes with a segmental rack 46 carried hy the drill shell 9.

' The shaft 41 may be provided with a crank 'handle 47 for use in manually swinging the drill when so desired. f

and to the motor ereinabove described has not been illustrated herein as it is not thou ht that it is necessary for a clear under- Y stan gof the invention and for the reason 85 that it forms no part of the present invention. One method/ofoperation is as follows.

The drill toolsfor cutting the first stage toward the lower level are secured in position for use. The clutch 28 is then moved into position to, connect the motor shaft 29 withthe truck'i'fdrive. The motor .is thon started and the drill is also put into operation, thus moving the machine along its track and causing the drill to cut a channel to a predetermined point. When the machine reaches said predetermined point dendted in broken lines at a in Fig. 3, the clutch 28 is' thrown into 4position to" disconnect the truck drive and Ato connect the motor shaft 50 29-'to the drill swinging mechahu'sm. This will cause the motoiyunder'the control of the handle l6, to swing the drill in the arc of a circle for com leting the channel from said l predetermine point a to the point ct.` The i5 truck lmay then be moved hack to its original ositionV After the euttingof the ii rst stage as been completed, the next set f drill toolsl may he ,inserted ready for cutting the next stage to! the lower` level. The operations l i0 may t/hen he repeated at the) different stages i" 12h', c c', dd', untilthe machine has cut to the redetermined lower level f. After this evel has heen reached, the machine when The means for feedirg motive power to the' used as a radial cutter, may cut out the rock by a series cl operations as shown in dotted lines beginning with c c lo extend thelcvel cfto the limit ol the cut ntf.

lt will he seen that the concentric guides in the frame for the 4upper and lower segments of the drill shell serve to materially hrace the shell and produce a strong and rigid construction. It will also be seen that the extensible and contractible connection in the drill swinging mechanism permits the frame 1() to he adjusted into any angular 75 position with respect to the truck without intirlring with the operation of vthe engine or( ri l'l so desired the drill shell may he locked to the truck frame when the machine is being 80 used as `a straight line channelei" and released when used as a radial cutter. Also the truck may be clamped to the track rails when the machine is used as a radial cutter.

What I claim is:

1. A channeler comprising a wheeled truck, a drill pivoted thereon and a common motor, means for moving-the truck to cause the drill to cut a channel to a predetermined point, means for swinging the drill in the arc of a circle to cause the drill to complete the channel from said predetermined point and means for connecting the motor' with the truck moving means or with the drill swinging means at will. 95

2. A 'channeler comprising a wheeled truck, a drill pivoted thereon and a common motor mounted on the truck, means for moving the truck to cause the drill to cut a channel to a n'cdetermined point, means for swinging t e drill in the arc of a circle to cause the drill to complete the channel from said predetermined point and means for connecting the motor with-the truck moving mcans oi with the drill swinging means at wi l.

3. A, channeler comprising a wheeled truck, a frame hin ed thereto, a drill, its shell ivoted on the Iii-rame, means for adjusting t 1e frame into different angular positions with respect to the truck, and a common motor, means for driving the truck to cause the drill to cut a channel to a predetermined .point means for swinging the drill inthe are T of a circle to cause it tocomplete 'the channelA from said predetermined oint and means'for connecting the motor wit i the truck moving means or with the drill swinging means at will. i

4. A channelei' eoi'npiising a wheeled120 itrucl, a drill pivoted thereon, a motor, a

truck driving mechanism, a drill swinging mechanism and means for connecting the motor to the ope or the other ol the said mechanisms at' pleasure'.

5. A channeler comprising a wheeled tliiok', 'a drill pivoted thereon, s motor mounted on the truck, a truck driving mechanism, adr-ill' swinging mechanism'and means for connecting the motor to the one or the 5 vother of the said mechanisms at pleasure.

In testimony, that Iclaim the foregoing es my invention, I have signed my name in i nresenee of two WILLnm/i RELLWITZ.-

Witnesses t WARD RAYMOND, ARTHUR H. GIBSON. 

